Tech Stack Checker: What Does This Website Use?
Type a domain and see the CRM, analytics, chat, payments, site builder and email tools the company runs.
How it works
01
Type a domain
Any company website.
02
We check scripts and DNS
Tracking scripts, page headers, MX and SPF records.
03
See the stack
Grouped by category, with how each tool was detected.
What it can't tell you
- Tools that run only behind a login or on servers (not visible from outside).
- How much they pay or how many seats they have.
Questions
How does a tech stack checker work?
It reads the scripts a website loads, its response headers and its public DNS records, then matches them against known tools.
Is it the same as BuiltWith or Wappalyzer?
Similar idea, focused on the tools that matter for B2B sales: CRM, marketing automation, ad pixels, support chat, payments and email.